netdev - Re: [PATCH V4] mlx4_core: allocate ICM memory in page size chunks

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Message-ID: <20180605083241.GU19202@dhcp22.suse.cz>
Date:   Tue, 5 Jun 2018 10:32:41 +0200
From:   Michal Hocko <mhocko@...nel.org>
To:     Eric Dumazet <eric.dumazet@...il.com>
Cc:     David Miller <davem@...emloft.net>, qing.huang@...cle.com,
        tariqt@...lanox.com, haakon.bugge@...cle.com,
        yanjun.zhu@...cle.com, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org,
        gi-oh.kim@...fitbricks.com
Subject: Re: [PATCH V4] mlx4_core: allocate ICM memory in page size chunks

On Mon 04-06-18 06:22:26, Eric Dumazet wrote:
> 
> 
> On 06/04/2018 06:11 AM, Michal Hocko wrote:
> > On Thu 31-05-18 11:10:22, Michal Hocko wrote:
> 
> > Just in case you are interested
> > ---
> > From 5010543ed6f73e4c00367801486dca8d5c63b2ce Mon Sep 17 00:00:00 2001
> > From: Michal Hocko <mhocko@...e.com>
> > Date: Mon, 4 Jun 2018 15:07:37 +0200
> > Subject: [PATCH] net: cleanup gfp mask in alloc_skb_with_frags
> > 
> > alloc_skb_with_frags uses __GFP_NORETRY for non-sleeping allocations
> > which is just a noop and a little bit confusing.
> > 
> > __GFP_NORETRY was added by ed98df3361f0 ("net: use __GFP_NORETRY for
> > high order allocations") to prevent from the OOM killer. Yet this was
> > not enough because fb05e7a89f50 ("net: don't wait for order-3 page
> > allocation") didn't want an excessive reclaim for non-costly orders
> > so it made it completely NOWAIT while it preserved __GFP_NORETRY in
> > place which is now redundant.
> > 
> > Drop the pointless __GFP_NORETRY because this function is used as
> > copy&paste source for other places.
> > 
> > Signed-off-by: Michal Hocko <mhocko@...e.com>
> > ---
> 
> Reviewed-by: Eric Dumazet <edumazet@...gle.com>

Thanks! What is the proper process now? Should I resend or somebody can
pick it up from this thread?
-- 
Michal Hocko
SUSE Labs